Background-limited Imaging in the Near Infrared with Warm InGaAs Sensors: Applications for Time-domain Astronomy by Simcoe, Robert A, Fűrész, Gábor, Sullivan, Peter W, Hellickson, Tim, Malonis, Andrew, Kasliwal, Mansi, Shectman, Stephen A, Kollmeier, Juna A, Moore, Anna

“…Such a camera would be sensitive for a week or more to isotropic emission from r-process kilonova ejecta similar to that observed in GW170817, over the full 190 Mpc horizon of Advanced LIGO.…”
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Astrophysical Implications on Hyperon Couplings and Hyperon Star Properties with Relativistic Equations of States by Xiangdong Sun, Zhiqiang Miao, Baoyuan Sun, Ang Li

“…In this work, we perform Bayesian inference of phenomenological hyperon–nucleon interactions using the tidal deformability measurement of the GW170817 binary neutron star merger as detected by LIGO/Virgo and the mass–radius measurements of PSR J0030+0541 and PSR J0740+6620 as detected by NICER. …”
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Neutron Star Cooling Within the Equation of State With Induced Surface Tension by Stefanos Tsiopelas, Violetta Sagun

“…We study the thermal evolution of neutron stars described within the equation of state with induced surface tension (IST) that reproduces properties of normal nuclear matter, fulfills the proton flow constraint, provides a high-quality description of hadron multiplicities created during the nuclear-nuclear collision experiments, and it is equally compatible with the constraints from astrophysical observations and the GW170817 event. The model features strong direct Urca processes for the stars above <inline-formula><math display="inline"><semantics><mrow><mn>1</mn><mo>.…”
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Effects of Hadron-Quark Phase Transitions in Hybrid Stars within the NJL Model by Ignacio Francisco Ranea-Sandoval, Milva Gabriela Orsaria, Germán Malfatti, Daniela Curin, Mauro Mariani, Gustavo Aníbal Contrera, Octavio Miguel Guilera

“…We compare our models with data from PSR J1614-2230 and PSR J0343+0432 and also from GW170817 and its electromagnetic counterpart GRB170817A and AT2017gfo. …”
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A General Overview for Localizing Short Gamma-Ray Bursts with a CubeSat Mega-Constellation by Fadil Inceoglu, Fadil Inceoglu, Fadil Inceoglu, Néstor J. Hernández Marcano, Rune H. Jacobsen, Christoffer Karoff

“…The gamma-ray burst monitor (GBM) on the Fermi Gamma-Ray Space Telescope, for the first time, detected a short gamma ray burst (SGRB) signal that accompanies a gravitational wave signal GW170817 in 2017. The detection and localization of the gravitational wave and gamma-ray source led all other space- and ground-based observatories to measure its kilonova and afterglow across the electromagnetic spectrum, which started a new era in astronomy, the so-called multi-messenger astronomy. …”
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Background-limited Imaging in the Near Infrared with Warm InGaAs Sensors: Applications for Time-domain Astronomy by Simcoe, Robert A., Furesz, Gabor, Sullivan, Peter W, Hellickson, Timothy H, Malonis, Andrew C., Kasliwal, Mansi, Shectman, Stephen A, Kollmeier, Juna A, Moore, Anna

“…Such a camera would be sensitive for a week or more to isotropic emission from r-process kilonova ejecta similar to that observed in GW170817, over the full 190 Mpc horizon of Advanced LIGO.…”
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The R-Process Alliance: First Magellan/MIKE Release from the Southern Search for R-process-enhanced Stars by Ezzeddine, R, Rasmussen, K, Frebel, A, Chiti, A, Hinojisa, K, Placco, VM, Ji, AP, Beers, TC, Hansen, TT, Roederer, IU, Sakari, CM, Melendez, J

“…Extensive progress has recently been made in our understanding of heavy-element production via the r-process in the universe, specifically with the first observed neutron star binary merger (NSBM) event associated with the gravitational-wave signal detected by LIGO, GW170817. The chemical abundance patterns of metal-poor r-process-enhanced stars provide key evidence for the dominant site(s) of the r-process and whether NSBMs are sufficiently frequent or prolific r-process sources to be responsible for the majority of r-process material in the universe. …”
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Cerium Features in Kilonova Near-infrared Spectra: Implication from a Chemically Peculiar Star by Masaomi Tanaka, Nanae Domoto, Wako Aoki, Miho N. Ishigaki, Shinya Wanajo, Kenta Hotokezaka, Kyohei Kawaguchi, Daiji Kato, Jae-Joon Lee, Ho-Gyu Lee, Teruyuki Hirano, Takayuki Kotani, Masayuki Kuzuhara, Jun Nishikawa, Masashi Omiya, Motohide Tamura, Akitoshi Ueda

“…Observations of the kilonova from the neutron star merger event GW170817 opened a way to study r -process nucleosynthesis directly using neutron star mergers. …”
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Quasiperiodic Oscillation in Short Gamma-Ray Bursts from Black Hole–Neutron Star Mergers by Yan Li, Rong-Feng Shen, Bin-Bin Zhang

“…While the former scenario was confirmed by the event GW170817, the latter remains elusive. Here, we consider the latter scenario in which an NS is tidally disrupted by a fast-spinning low-mass BH and the accretion onto the BH launches a relativistic jet and hence produces an sGRB. …”
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A Modern View of the Equation of State in Nuclear and Neutron Star Matter by G. Fiorella Burgio, Hans-Josef Schulze, Isaac Vidaña, Jin-Biao Wei

“…</mo><msubsup><mn>14</mn><mrow><mo>−</mo><mn>0.09</mn></mrow><mrow><mo>+</mo><mn>0.10</mn></mrow></msubsup><mspace width="0.166667em"></mspace><msub><mi>M</mi><mo>⊙</mo></msub></mrow></semantics></math></inline-formula> for the object PSR J0740+6620, and with the upper limit of the maximum mass of about 2.3–2.5<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mspace width="0.166667em"></mspace><msub><mi>M</mi><mo>⊙</mo></msub></mrow></semantics></math></inline-formula> deduced from the analysis of the GW170817 NS merger event. <b>Conclusion:</b> Our study shows that whereas no correlation exists between the tidal deformability and the value of the nuclear symmetry energy at saturation for any value of the NS mass, very weak correlations seem to exist with the derivative of the nuclear symmetry energy and with the nuclear incompressibility.…”
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KilonovAE: Exploring Kilonova Spectral Features with Autoencoders by N. M. Ford, Nicholas Vieira, John J. Ruan, Daryl Haggard

“…Kilonovae are likely a key site of heavy r -process element production in the Universe, and their optical/infrared spectra contain insights into both the properties of the ejecta and the conditions of the r -process. However, the event GW170817/AT2017gfo is the only kilonova so far with well-observed spectra. …”
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Production of solar abundances for nuclei beyond Sr: The s- and r-process perspectives by Maurizio M. Busso, Maurizio M. Busso, Karl-Ludwig Kratz, Karl-Ludwig Kratz, Sara Palmerini, Sara Palmerini, Sara Palmerini, Waheed Akram, Vincenzo Antonuccio-Delogu

“…However, so far, we have found only a single direct observation of such a link, the kilonova GW170817. Its fast evolution could not provide strict constraints on the nucleosynthesis details, and in any case, there remain uncertainties in the local r-process abundance patterns, which are independent of the specific astrophysical site, being rooted in nuclear physics. …”
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Interferometer Sensing and Control for the Advanced Virgo Experiment in the O3 Scientific Run by Annalisa Allocca, Diego Bersanetti, Julia Casanueva Diaz, Camilla De Rossi, Maddalena Mantovani, Alain Masserot, Loïc Rolland, Paolo Ruggi, Bas Swinkels, Enzo Nicolas Tapia San Martin, Marco Vardaro, Michal Was

“…The three detectors observed the sky simultaneously during the last part of the second Observing Run (O2) in August 2017, and this led to two paramount discoveries: the first three-detector observation of gravitational waves emitted from the coalescence of a binary black hole system (GW170814), and the first detection ever of gravitational waves emitted from the coalescence of a binary neutron star system (GW170817). Coincident data taking was re-started for the third Observing Run (O3), which started on 1st April 2019 and lasted almost one year. …”
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Anisotropic ultra-compact object in Serrano–Liska gravity model by I. Prasetyo, I. H. Belfaqih, A. Suroso, A. Sulaksono

“…Because the corresponding effective potential is almost indistinguishable from that of GR, this echo frequency value can be indistinguishable to one of GR, but not comparable to the result from GW170817 data analysis, i.e., 72 Hz. To circumvent this problem, we can decrease the value of echo frequency by increasing the magnitude of $${\tilde{c}}$$ c ~ to orders of magnitude than $${\tilde{c}}= 10^7$$ c ~ = 10 7 m $$^2$$ 2 . …”
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Deep learning detection and classification of gravitational waves from neutron star-black hole mergers by Richard Qiu, Plamen G. Krastev, Kiranjyot Gill, Edo Berger

“…Most importantly, we successfully recover the two confirmed NSBH events to-date (GW191219 and GW200115) and the two confirmed BNS mergers to-date (GW170817 and GW190425), together with ∼90% of all BBH candidate events from the third Gravitational Wave Transient Catalog, GWTC-3. …”
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The r-process Pattern of a Bright, Highly r -process-enhanced Metal-poor Halo Star at [Fe/H ] ~ -2 by Sakari, Charli M., Placco, Vinicius M., Hansen, Terese, Holmbeck, Erika M., Beers, Timothy C., Roederer, Ian U., Venn, Kim A., Wallerstein, George, Davis, Christopher Evan, Farrell, Elizabeth M., Yong, David, Frebel, Anna L.

“…This robust main r-process pattern is a necessary constraint for r-process formation scenarios (of particular interest in light of the recent neutron star merger, GW170817), and has important consequences for the origins of r-II stars. …”
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The R-Process Alliance: First Magellan/MIKE Release from the Southern Search for R-process-enhanced Stars by Ezzeddine, Rana, Rasmussen, Kaitlin, Frebel, Anna L., Chiti, Anirudh, Hinojisa, Karina, Placco, Vinicius M., Ji, Alexander P., Beers, Timothy C., Hansen, Terese T., Roederer, Ian U., Sakari, Charli M., Melendez, Jorge

“…Extensive progress has recently been made in our understanding of heavy-element production via the r-process in the universe, specifically with the first observed neutron star binary merger (NSBM) event associated with the gravitational-wave signal detected by LIGO, GW170817. The chemical abundance patterns of metal-poor r-process-enhanced stars provide key evidence for the dominant site(s) of the r-process and whether NSBMs are sufficiently frequent or prolific r-process sources to be responsible for the majority of r-process material in the universe. …”
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The search for unmodeled gravitational-wave transients in the Advanced LIGO-Virgo Era by Lynch, Ryan Christopher.

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A Cross-correlation Study between IceCube Neutrino Events and the FERMI Unresolved Gamma-Ray Sky by Michela Negro, Milena Crnogorčević, Eric Burns, Eric Charles, Lea Marcotulli, Regina Caputo

“…With the coincident detections of electromagnetic radiation together with gravitational waves (GW170817) or neutrinos (TXS 0506+056), the new era of multimessenger astrophysics has begun. …”
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An updated nuclear-physics and multi-messenger astrophysics framework for binary neutron star mergers by Peter T. H. Pang, Tim Dietrich, Michael W. Coughlin, Mattia Bulla, Ingo Tews, Mouza Almualla, Tyler Barna, Ramodgwendé Weizmann Kiendrebeogo, Nina Kunert, Gargi Mansingh, Brandon Reed, Niharika Sravan, Andrew Toivonen, Sarah Antier, Robert O. VandenBerg, Jack Heinzel, Vsevolod Nedora, Pouyan Salehi, Ritwik Sharma, Rahul Somasundaram, Chris Van Den Broeck

“…Abstract The multi-messenger detection of the gravitational-wave signal GW170817, the corresponding kilonova AT2017gfo and the short gamma-ray burst GRB170817A, as well as the observed afterglow has delivered a scientific breakthrough. …”
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